Osa Weather (Next 3 days): The snow forecast for Osa is: Mostly dry. Freeze-thaw conditions (max 11°C on Sat afternoon, min 0°C on Thu night). Winds increasing (light winds from the SSW on Sat afternoon, fresh winds from the SSW by Sun afternoon).
Osa Weather (Days 4-6): Heavy rain (total 31.0mm), heaviest during Tue afternoon. Freeze-thaw conditions (max 10°C on Sun night, min -1°C on Sun night). Winds decreasing (fresh winds from the SW on Sun night, calm by Wed afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 0 |  | ||||
| Bottom Lift: | 0 | |
Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  |  |  | | | | |  |  | | |  | |  |  | |
cloudy | cloudy | clear | clear | clear | clear | clear | clear | some clouds | rain shwrs | clear | some clouds | some clouds | cloudy | heavy rain | heavy rain | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | 2 | — | — | — | — | 17 | 12 | |
max °C | 2 | 7 | 7 | 2 | 10 | 11 | 6 | 11 | 11 | 10 | 5 | 7 | 3 | 9 | 4 | 6 |
min °C | 0 | 3 | 3 | 1 | 6 | 6 | 4 | 9 | 10 | -1 | 1 | 3 | 2 | 6 | 3 | 4 |
-4 | -1 | -2 | -3 | 3 | 5 | 1 | 5 | 6 | -6 | -3 | 1 | 1 | 2 | 1 | 2 | |
75 | 78 | 51 | 74 | 53 | 50 | 47 | 65 | 75 | 67 | 46 | 24 | 35 | 46 | 99 | 97 | |
1050 | 1150 | 1350 | 1250 | 1650 | 2250 | 2800 | 2600 | 2550 | 1350 | 1000 | 2350 | 2750 | 2500 | 2250 | 2650 | |
 | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — |
 | — | — | 5:58 | — | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — |
Mostly dry. Freeze-thaw conditions (max 11°C on Sat afternoon, min 0°C on Thu night). Winds increasing (light winds from the SSW on Sat afternoon, fresh winds from the SSW by Sun afternoon).
Heavy rain (total 31.0mm), heaviest during Tue afternoon. Freeze-thaw conditions (max 10°C on Sun night, min -1°C on Sun night). Winds decreasing (fresh winds from the SW on Sun night, calm by Wed afternoon).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 1 cm |
| Last snowfall: | 18 Feb 2026 |
| Snow Alerts | Create Alert |
0.3 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.8 | Powder days Fresh snow, limited sun, any wind. |
0.3 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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